Stamping device for packers



Feb. y26, 19,35: .jg w. LEARY 1,992,755

STAMPING DEVICE FOR PACKERS Filed April 12, 1934 INVENTOR M A, T RNEPatented Feb. 26, 1935 UNITED STATES 1,992,755 STAMPING DEVICEl FORPACKERS' James W. Leary, Bloomfield, N. J., assignor to American Machine& `Foundry Companya corporation of New `Iersey Application April i2,1934, serial No. 720,340

i 8 Claims.

This invention relates to improvements in packaging machines generally,and more particularly to the stamping device of machines for packagingpulverulent materials, of the type disclosed in `Patent No. 1,058,579,granted April 8,

1913 on the application of G. W. Gwinn.

The main object of the invention is to provide a stamping device whichwill operate more eniciently by reason of its novel mode of operation.In prior stamping devices of the type disclosed in the above mentionedpatent the top flap of the pouch `enclosing the material being packagedis held down adjacent its base4 by a nap-presser while the stamp is laidacross the top of the package beyond the edge of the flap-presser,4 Withthe present device the stamp is drawn overthe top of the package inoverlying relation` to the` flappresser and helddown on the top of thepackage While the package is raised between stationary 2`0` brushes,` asin the` prior devices, which Wipe the ends of the'stamp down over thesides of the pack age. `In the present device, however, the stamp, afterthe package has been subsequently tilted forward to withdraw thenap-presser from under the stamp, covers a greater area of the top flapand thus holds the latter more rmly and securely.

A further object of the invention is to simplify the construction of thestamp-presser. The novel modev of operation of the device makes it.possible to dispense with the cam controlled mechanism common in priorstamping `devices for actuating the stamp-presser.

With these and other objects not specifically mentioned in view, theinvention consists in cer` tain constructions and` combinationshereinafter fully described and then specifically set forth Vin theclaims hereunto appended.

` The motion for operating the stamping device isderived fromh the samelever and cam system .usedffor actuating the stamping device oftheoriginal machine, as disclosed in the `patent above mentioned, and inthe accompanying drawing the p subject of this invention has been shownas inferred to.` Where thesame or similar parts -to those iin theoriginal machine are used, they have been given the same referencenumbers.

In the accompanying drawing:

Fig. 1 is an elevation (partly broken) showing the features 'of thisinvention;

Fig. Z is a sectional side View taken through center of Fig. 1;`

the

corporated in the packaging machine above re- Fig. 3 is a sectionalplan'view'taken on line 3-2-3;

(Cl. 21S-57) Fig. 4 is a sectional `plan view taken on line 4 4 of Fig.1; and i l Fig. 5 is aplan View of top of Fig. 1.` i In carrying theinvention into effect there is provided means for lifting aV packagevertically in upright position, a flap-presser bearing down on the topflap of the package while itis being lifted,y mechanism for moving astamp across the top of the package in overlying relation totheflappresser, a vertically movable stamp-presser for pressing thestamp down against the top of the package while the latter is beinglifted, members for wiping-the ends of the stamp down over the sides ofthe package as the latter is being lifted, and stationary guidesarranged to engage the back of the package as it is being lifted, theupper ends of the guides being inclinedracross the path of the packageto tilt it and thus withdraw the flappresser from under said stamp andwithdraw the top of the `package from Contact with said stamp-presser.In the best `,constructions contempla-ted, there is -also providedstationary rollers arranged to engage the top of thepackage at the endof its upward movement, a pusher-for ejecting the stamped packagesidewise from said means, and a curved guide strip for tilting thepackage back into upright position as it is being ejected. The packagevlifting means in the best constructions may includeV a vertically:reciprocable pusher plateg-the flap-presser includes a verticallymovable slideA and Ia resilient Anappresser plate` mounted on the slide;and the stamp-presser includes a slide, stamp-presser rollers on saidslide, and a stop ffor supporting said .slide with its rollers. inpositionk to engage the stamp on the topof the lpackage being lifted.These various meansand parts maybe Widely varied in constructionwithin-the scope of the claims forthe particular deviceselected toillustrate `the inventionis but one of many possible concreteembodiments-of the same. The invenftion, therefore, is notto berestricted to the speciiic construction shown and described.;

As the turret turns periodically, Figs. 1` and 2, it brings thesuccessive pockets 99 thereof, ,to-i gether with the packages therein,into registry with pusher 193, the top flap of eachpouch B successivelyriding under the vresilient nap-presser plate 301 on nap-presser slide302. Pusher plate 193 on rod 192, which is periodically reciprocated bymechanism shownvin thel above mentioned patent, starts the `packagethrough pocket 99,-`

and since the motion of the nap-presser slide 3025 isslightly delayedrelative to the motion of'y the pusher, it causespresser plate 301 tobear down on the top flap of pouch B and thus hold the package firmly onthe pusher. As the package proceeds up through pocket 99 and into thestationary guide 303 it picks up the stamp or label S, which, in themeantime, has been drawn from the stamp magazine 215 over the pasteroller of a stamp pasting mechanism (not shown) by gripper jaws 239 and240, and deposited across the top of guide 303 in overlying relation tothe presser plate 301. The gripper actuating mechanism and stamp pastingmechanism are clearly shown in the above mentioned patent to whichreference may be had for a complete disclosure of the same. After thepackage has contacted with stamp S it encounters stamp-presser rollers304 on stamppresser slide 305 which slides freely on guide bars 308 andby its weight causes rollers 304 to bear down on the stamp S, holding itsecurely to the top of the package until the paste on its under face hashad time to set and unite it to the package. The slide 305 normallyrests on a stop set in one of the bars 308, until it is raised therefromby an ascending package.

As the package, with the stamp across its top, continues its upwardmotion, the overhanging ends of the stamp S encounter brushes 167 whichsweep the ends of the stamp down against the narrow sides of thepackage. The brushes 167 are adjustably mounted in order to provide asuitable pressure to properly brush the stamp so as to secure it to thepackage.

The operation of attaching the stamp to the package is now completed,and as the package continues its movement up to the delivery level, theupper back corner of the package encounters the inclined upper end ofthe guides 306m and 306D which compel the package to assume a graduallyvincreasing tilt forward and, in so doing, withdraws the flap-presserplate 301 from under the stamp and withdraws the top of the package fromunder stamp-presser rollers 304.

As the package reaches the delivery level, at the limit of the stroke ofpusher 193, the tcp of thepackage bears against stationary rollers 307,and pusher 195 proceeds to eject it from pusher 193V onto the deliverytable 164. While being pushed onto the delivery table the packagetravels under the row of rollers 307 and is gradually straightened up bythe curved guide strip 3065 so that it enters the delivery channel orrunway 165 in an upright position, as indicated in Fig. 5.

Since the pusher 193 and the flap-presser slide 302 are both actuated bythe same operating means shown in the patent referred to above, theslide 302 halts in its upper position while the package is being pushedoff the pusher 193 tothe delivery table, thus avoiding any possibleinterference with the free passage of the package. Stamp-presser slide305 with its rollers 304, is also held stationary during this operation,as the top surface 302a of the flap-presser slide 302i supports thestamp-presser slide 305 by contacting with the bottom surface 305:1thereof.

As mentioned above, the motions and the timing of the vertical andhorizontal pushers 193 and 195, respectively, and the transfer andpositioning of stamps are the same as in the machine described in PatentNo. 1,058,579, previously referred to, except that the motion of thestamppresser is produced by the movement of the package. y

Whilethe invention has been illustrated in conjunction with the type ofmachine disclosed in the patent referred to above, it will be understoodthat it is useful in any type of packaging machine in which it isdesired to apply a stamp or label to the package.

What is claimed is:

1. The combination with means for lifting a package vertically inupright position, the package having a top flap, of a flap-presser forbearing down on said flap While the package is being lifted, mechanismfor moving a stamp across the top of said package in overlying relationto said flap-presser, a vertically movable'stamp-presser for pressingthe stamp down against the top of the package while the latter is beinglifted, brushes for wiping the ends of the stamp down over the sides ofthe package as the latter is being lifted, and stationary guidesarranged to engage the back of the package as it is being lifted, theupper ends of said guides being inclined with respect to the lower partto tilt the package and thus withdraw the flap-presser from under saidstamp and withdraw the top of the package from contact with saidstamp-presser.

2. The combination with means for lifting a package vertically inupright position, the package having a top flap, of a flap-presser forbearing down on said ap while the package is being lifted, mechanism formoving a stamp over the top of said package in overlying relation tosaid flap-presser, a vertically movable stamp-presser for pressing thestamp down against the top f the package while the latter is beinglifted, members for wiping the ends of the stamp down over the sides ofthe package as the latter is being lifted, guides arranged to engage theback of the package as it is being lifted, the upper ends of said guidesbeing inclined with respect to the lower part to tilt the package andthus Withdraw the flap-presser from under said stamp and withdraw thetop of the package from contact with said stamp-presser, stationaryrollers arranged to engage the top of the package at the end of itsupward movement, a pusher for ejecting the stamped package sidewise fromsaid means, and a curved guide strip for tilting the package back intoupright position as it is being ejected from said means.

3. The combination with means for lifting a package vertically inupright position, the package having a top flap, of a flap-presser forbearing down on said ilap while the package is being lifted, avertically movable stamp-presser for pressing a stamp down against thetop of the package while the latter is being lifted, and guides arrangedto engage the back of the package as it is being lifted, the upper endsof said guides being inclined with respect to the lower part to tilt thepackage and thus withdraw the flap-presser from under said stamp andwithdraw the top of the package from contactV with said stamppresser. 1

4 The combination withrmeans for lifting a package vertically in uprightposition, the package having a top flap, of a vertically reciprocableflap-presser for bearing down on said flap while the package isbeinglifted, a vertically movable stamp-presser for pressing a stampdown against the top of the package while the later is being lifted,members for wiping the ends of the stamp down over the sides of thepackage as the latter is being lifted, guides arranged to engage theback of the package as it isbeing lifted, the upper ends of said guidesbeing inclined with respect to the lower part to tilt the package andthus withdraw the flap-presser from undersaid stamp and withdraw the topof the package from Contact with said stamp-presser, Ystationary rollersarranged to engage the top of the package at the end of its upwardmovement, a pusher for ejecting the stamped package sidewise from saidmeans, and a curved guide strip for tilting the package back intoupright position as it is being ejected from said means. y

5. The combination with means for lifting a package vertically inupright position, the package having a top iiap, of a flap-presser forbearing down on said flap while the package is being lifted, mechanismfor moving a stamp over the top of said package in overlying relation tosaid plate, a vertically movable stamp-presser for pressing the stampdown against the top of the package while the latter is being lifted,members for wiping the ends of the stamp down over the sides of thepackage as the latter is being lifted, guides arranged to engage theback of the package as it is being lifted, the upper ends of said guidesbeing inclined with respect to the lower part to tilt the package andthus withdraw the flappresser from under said stamp and withdraw the topof the package from contact with said stamp-presser, stationary rollersarranged to engage the top of the package at the end of its upwardmovement, a pusher for ejecting the stamped package sidewise from saidmeans, and a curved guide strip for tilting the package back intoupright position as `it is being ejected from said means, said meansincluding a vertically reciprocable pusher plate.

6. The combination with means for lifting a package vertically inupright position, the package having a top ilap, of a flap-presser forbearing down on said flap while the package is being lifted, mechanismfor moving a stamp over the top of said package in overlying relation tosaid plate, a vertically movable stamp-presser for pressing the stampdown against the top of the package while the latter is being lifted,members for wiping the ends of the stamp down over the sides of thepackage as the latter is being lifted, guides arranged to engage theback of the package as it is being lifted, the upper ends of said guidesbeing inclined with respect to the lower part to tilt the package andthus withdraw the flap-presser from under said stamp and withdraw thetop of the package from contact with said stamp-presser, stationaryrollers arranged to engage the top of the package at the end of itsupward movement, a pusher forejecting the stamped package sidewise fromsaid means, and a curved guide strip for tilting the package back intoupright position as it is being ejected from said means, saidflap-presser including a vertically reciprocable slide `and a resilientflap-presser plate mounted on said slide.

7. The combination with means for lifting a package vertically inupright position, the package having a top flap, of a flap-presser forbearing down on said flap while the package is being lifted, mechanismfor moving a stamp over the top of said package in overlying relation tosaid plate, a vertically movable stamp-presser for pressing the stampdown against the top of the package while the latter is being lifted,members for wiping the ends o the stamp down over the sides of thepackage as the latter is being lifted,

guides arranged to engage the back of the package as it is being lifted,the upper ends of said guides being inclined with respect to the lowerpartto tilt the package and thus withdraw the flap-presser from undersaid stamp and withdraw the top of the package from contact with saidstamp-presser, stationary rollers arranged to engage the top of thepackage at the end of its upward movement, a pusher for ejecting thestamped package sidewise from said means, and a curved guide strip fortilting the package back into upright position as it is being ejectedfrom said means, said stamp-presser including a vertically movableslide, stamp-presser rollers on said slide, and a stop Vnormallysupporting said slide with its rollers in position to engage a stamp onthe top of the package as the latter is being lifted.

8. The combination with means for moving a package having a flap on oneface, with said face leading, of a flap presser for bearing against saidflap and moving with said package, mechanism for moving a stamp acrossthe said face in overlying relation to said flap presser, means forpressing the stamp against said face and flap presser, and means forproducing a relative withdrawing movement in the plane of said facebetween said flap presser and said package to withdraw the flap presserfrom under the stamp.

JAMES W. LEARY.

